This girl wants me to give her free rides to and from the bar should I do it?

we live near each other in small town outside of major town and really nothing to do here at night , she is like the " girl next door " to me in the sense , but were not exactly close friends as she is a bit younger than me , I've never given her rides before but did give one for her gf last week. to explain I often go to pub but don't drink or only have 1 beer so I'm safe to drive as I find taxi's way too expensive from where I live to town

but anyways I was sort of surprised when she mentioned she'd like it if I gave her rides home from the pub some nights if I was there when she was and she needed a ride back home.

but I'm not sure if I should really do it for free as my car and gas is expensive and I'd feel she was using me in the sense if she's like at the bar hitting on other guys and such but expects me to drive her home for free and us not to be doing anything together
she's also really good looking , blonde 21 year old nursing student , thin , athletic and into jogging and often wears revealing clothes to the bar , I mean if there was ever a girl I'd be thrilled about be used by it be her but still I'm not sure its all a great idea
This girl wants me to give her free rides to and from the bar should I do it?
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